amiesample1mel2

amiesample1mel2 - Name: _ Class: _ Date: _ ID: A Quiz 1...

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Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Quiz 1 Heat and Temperature Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. L f (water) = 334 kJ/kg, c (water) =1.0 cal/g, 4.18 J=1 cal, R = 8.314 J/mol, k B = 1.38 x10 -23 J/K, ____ 1. A 10 g lead bullet traveling at 350 m/s strikes a large block of ice at 0ºC and gets embedded in it. If all the energy of he bullet is used up in melting the ice, how much ice will be melted? (Consider the bullet to be at 0ºC.) a. 4.2 g b. 3.7 g c. 2.8 g d. 2.1 g e. None of the above ____ 2. The temperature at which the Fahrenheit scale reading is twice that the Celsius scale reading is: a. -320ºF b. 160ºC c. 212ºC d. 320º e. None of the above ____ 3. 25.0 moles of methane gas are to be contained in a 20.0 liter container at a pressure of 30 × 10 5 Pa. The temperature of the gas must be: a. 123ºC b. 29ºC c. 16ºC d. -22ºC e. None of the above ____ 4. A 10 liter container has 2.0 moles of molecular oxygen at a pressure of 92 kPa. The rms speed of the oxygen molecules in the gas is: a. 534 m/s b. 441 m/s c. 375 m/s d. 208 m/s e. None of the above ____ 5. a copper radiator 2.0 mm thick and area 90 cm 2 has water inside at 80ºC and air outside keeping the surface at 20ºC. kT( Cu) = 386 W/mK, The rate of heat transfer is: a. 1.0 × 10 5 W b. 5.0 × 10 5 W c. 1.0 × 10 6 W d. 5.0 × 10 6 W e. None of the above
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Name: ________________________ ID: A 2 ____ 6. A circular metal plate is heated and the radius increases by 0.01%. The area of the plate will a. decrease by 0.01% b. increase by 0.01% c. increase by 0.02% d. increase by 0.03% e. none of the above ____ 7. A thermos bottle has a silvered surface surrounded by a vacuum space. The silvered surface in necessary in order to decrease the heat flow by__________. a. radiation b. conduction c. convection d. insulation e. none of the above ____ 8. Which of the following would exhibit the largest increase in temperature when initially heated at the same rate. a.
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amiesample1mel2 - Name: _ Class: _ Date: _ ID: A Quiz 1...

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